Troug, Haytem Ahmed, and Matt Murray. “The Asymmetric Effects of Fluctuations in Oil Prices on the Performance of the Libyan Economy: A VAR Approach”. International Journal of Economics and Financial Issues, vol. 10, no. 5, Sept. 2020, pp. 282-96, https://mail.econjournals.com/index.php/ijefi/article/view/10269.